Galvanic corrosion study of container materials using zero resistance ammeter

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Galvanic corrosion behavior of A 516 steel separately coupled to six different corrosion-resistant alloys was investigated in an acidic brine (pHa2.70) at 30{degree}C 60{degree}C and 80{degree}C using zero resistance ammeter technique. The corrosion-resistant alloys include Alloys 825, G-3, G-30, C-4 and C-22; and Ti Grade-12, which were coupled to A 516 steel at an anode-to- cathode area ratio of one. The galvanic current and galvanic potential were measured as a function of time at all three temperatures. Optical microscopic examination was also performed on all tested specimens to evaluate the extent of surface degradation due to galvanic coupling. The overall ... continued below

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11 p.

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Roy, A. K., LLNL November 1, 1997.

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Description

Galvanic corrosion behavior of A 516 steel separately coupled to six different corrosion-resistant alloys was investigated in an acidic brine (pHa2.70) at 30{degree}C 60{degree}C and 80{degree}C using zero resistance ammeter technique. The corrosion-resistant alloys include Alloys 825, G-3, G-30, C-4 and C-22; and Ti Grade-12, which were coupled to A 516 steel at an anode-to- cathode area ratio of one. The galvanic current and galvanic potential were measured as a function of time at all three temperatures. Optical microscopic examination was also performed on all tested specimens to evaluate the extent of surface degradation due to galvanic coupling. The overall results are presented in this paper.

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11 p.

Notes

OSTI as DE98058878

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  • Corrosion `98, San Diego, CA (United States), 22-27 Mar 1998

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  • Other: DE98058878
  • Report No.: UCRL-JC--128475
  • Report No.: CONF-980316--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 325351
  • Archival Resource Key: ark:/67531/metadc676041

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • November 1, 1997

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  • July 25, 2015, 2:20 a.m.

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  • May 8, 2017, 12:44 p.m.

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Roy, A. K., LLNL. Galvanic corrosion study of container materials using zero resistance ammeter, article, November 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc676041/: accessed October 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.